There are three families of herring-shaped fish: Borrelidae, Herring and Herring. As we all know, herring is a small fish with a body length of only 35 cm ~ 45 cm. Only a few herrings exceed this size. Some representatives of the Bao Dao fish family are almost 4 meters long. Imagine how a little herring can't fit on your table! But don't worry. None of us have a chance to deal with such a big herring. Bao Dao fish is a tropical fish. Although it can sometimes be seen at the seaside, no one will catch it at home.
Many herrings have no teeth or their teeth are fragile. Its swim bladder communicates with the stomach, so it can store excess gas in the stomach. The two protrusions of the swim bladder are connected with the cartilage sacs of the left and right ears to replace the eardrum of the fish. These fish like to live in groups and feed on small plankton. Most herring swim 3000 kilometers long and return to fattening, spawning or wintering places seasonally, such as black-backed herring in Caspian Sea.
Atlantic herring is the most important herring, which is more common than other fish in shops in China. They live in the North Atlantic and rarely cross the boundary formed by ice floes. But spawning must swim back to the southern coast of Norway. The scales of this fish fall off easily, and there are as many as 60 vertebrae in the body, setting a record for the painting family.
Baltic herring is a variety of Atlantic herring. It is difficult for this small fish to grow to 20 cm even if it grows to 6 to 7 years. They feed on plankton and are easy to adapt to fresh water life. Among the Baltic herring caught, some sometimes feel "big", with a body length of 38 cm. Sea bream is the main species in the Baltic Sea. Half the catch here is herring.
There is also a kind of herring in the Baltic Sea-Baltic millet herring, or herring. The catch of this small creature accounts for 20% of the total catch in the Baltic Sea. Millet bream lives in the Black Sea and the Mediterranean Sea, the North Sea and the Norwegian Sea, as well as Tierra del Fuego and the coast of New Zealand.
There are so many objects that herring can catch that even the most discerning gourmet can't tell them apart. There are five kinds of herring in the Caspian Sea alone. Our country calls it Caspian herring. Among them are common Caspian herring, herring-shaped herring and big-eyed herring living in deep water. There are black sea-Azov herring in the Black Sea, and fresh water herring in the adjacent Abraw Lake. There are four kinds of black-backed herring in Caspian Sea. Four kinds of Volga herring are also well known.
Sardines also belong to the herring family. They live in groups in mild waters. The sardines closest to our lives are called European sardines, including mullets living in the Black Sea and the Far East and small sardines in the Indian Ocean. Far East mullet is called Mayiwasi in Japanese.